CN115409377A

CN115409377A - Sustainability evaluation method and device for newly-built sewage treatment plant

Info

Publication number: CN115409377A
Application number: CN202211055153.7A
Authority: CN
Inventors: 陈昂; 王良友; 傅广泽
Original assignee: China Three Gorges Corp
Current assignee: China Three Gorges Corp
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2022-11-29

Abstract

The invention discloses a sustainability evaluation method and a sustainability evaluation device for a newly-built sewage treatment plant, wherein the method comprises the following steps: collecting original data of a target sewage treatment plant, classifying the original data of the target sewage treatment plant, and generating internal energy value data and external energy value data; constructing an energy value analysis table based on the internal energy value data and the external energy value data; drawing an energy value graph of the target sewage treatment plant based on the original data, the internal energy value data and the external energy value data of the target sewage treatment plant; establishing a sustainability evaluation index system of the sewage treatment plant based on the energy value analysis table and the energy value diagram of the target sewage treatment plant; and (4) evaluating the sustainability of the newly-built sewage treatment plant by utilizing a sustainability evaluation index system of the sewage treatment plant. The method overcomes the defect that the technical and economic evaluation of the sewage treatment plant is not comprehensive in the prior art, establishes the evaluation of the ecological environment sustainability under a long time scale, and realizes the sustainability evaluation of a newly-built sewage treatment plant more comprehensively.

Description

Sustainability evaluation method and device for newly-built sewage treatment plant

Technical Field

The invention relates to the technical field of sewage treatment plant evaluation, in particular to a sustainability evaluation method and a sustainability evaluation device for a newly-built sewage treatment plant.

Background

With the progress of global urbanization, urban population is rapidly increased, the problem of urban water pollution is increasingly highlighted, and the problems of insufficient urban domestic sewage treatment capacity, limited investment for sewage treatment and the like are urgently solved. For the construction and operation of urban domestic sewage treatment plants, a scheme of how to select advanced technology, economy and reasonability by using limited funds becomes more and more important.

In the past, the technical and economic evaluation of the urban sewage treatment plant mostly adopts methods such as an index system method, a data envelope analysis method, an analytic hierarchy process, life cycle evaluation and the like, a technical and economic evaluation model is constructed aiming at the sewage treatment process, investment, scale, cost and the like, the technical and economic evaluation is developed, and then support is provided for whether the sewage treatment plant is worth investment or not; in the prior art, the indexes of sewage treatment capacity, discharged water quality, pollutant removal efficiency, power consumption, energy consumption and the like which are brought into an examination range are mainly concerned in the aspect of technical and economic indexes, and the energy consumption, sewage treatment cost, sludge treatment cost, daily maintenance and detection cost and the like are mainly concerned in the aspect of cost estimation.

The related technology of the technical and economic evaluation of the existing sewage treatment plant can meet the basic technical and economic evaluation of the sewage treatment plant, but still has several defects, namely, the evaluation is not comprehensive enough, only the technical and economic evaluation is usually carried out, and the consideration of the ecological environment sustainability under a long time scale is lacked; secondly, sewage and sludge are generally considered, and greenhouse gas emission and other waste gas emission evaluation under the background of lack of double carbon targets are performed; thirdly, the existing data are directly adopted, and the comprehensive evaluation of relevant index values from the industrial point of view is lacked; and fourthly, the concept of resource efficiency is lacked, and the evaluation is usually only carried out from the perspective of economic efficiency.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defects that the related technology for the technical and economic evaluation of the existing sewage treatment plant lacks the consideration on the ecological environment sustainability in a long time scale, lacks the evaluation on the greenhouse gas emission and other waste gas emission under the background of a double-carbon target, lacks the comprehensive evaluation on related index values from the industrial point of view and lacks the evaluation only from the economic efficiency point of view, thereby providing the sustainability evaluation method and the device for the newly-built sewage treatment plant.

The embodiment of the invention provides a sustainability evaluation method for a newly-built sewage treatment plant, which comprises the following steps:

acquiring original data of a target sewage treatment plant, classifying the original data of the target sewage treatment plant, and generating internal energy value data and external energy value data;

constructing an energy value analysis table based on the internal energy value data and the external energy value data;

drawing an energy value graph of the target sewage treatment plant based on the original data, the internal energy value data and the external energy value data of the target sewage treatment plant;

establishing a sustainability evaluation index system of the sewage treatment plant based on the energy value analysis table and the energy value diagram of the target sewage treatment plant;

and evaluating the sustainability of the newly-built sewage treatment plant by utilizing a sustainability evaluation index system of the sewage treatment plant.

According to the sustainability evaluation method for the newly-built sewage treatment plant, provided by the invention, a sustainability evaluation index system of the sewage treatment plant is established based on the energy analysis table and the energy map of the target sewage treatment plant, so that the defect that the technical and economic evaluation of the sewage treatment plant is not comprehensive in the prior art is overcome, the ecological environment elements are considered in the establishment of the energy analysis table and the energy map of the target sewage treatment plant, the evaluation of the sustainability of the ecological environment under a long time scale is established, and the sustainability evaluation of the newly-built sewage treatment plant is realized more comprehensively.

Optionally, constructing an energy value analysis table based on the internal energy value data and the external energy value data includes:

acquiring an energy value project type, and matching the original data of the target sewage treatment plant with the energy value project type to generate original data of the energy value project;

acquiring an energy value conversion rate, and determining solar energy value data by using the energy value conversion rate based on the original data of the energy value project;

carrying out value conversion on the solar energy value data to generate energy value data;

and constructing an energy value analysis table based on the internal energy value data, the external energy value data, the energy value project type, the energy value project raw data, the energy value conversion rate, the solar energy value data and the energy value data.

Optionally, plotting the energy value map of the target sewage treatment plant based on the raw data of the target sewage treatment plant, the internal energy value data and the external energy value data comprises:

dividing original data of a target sewage treatment plant, and determining a range boundary of the target sewage treatment plant;

determining the main energy component outside the target sewage treatment plant based on the external energy value data;

determining a main energy component in the target sewage treatment plant based on the internal energy value data;

and drawing an energy value diagram of the target sewage treatment plant based on the range boundary of the target sewage treatment plant, the main energy component outside the target sewage treatment plant and the main energy component inside the target sewage treatment plant.

The energy-value diagram of the target sewage treatment plant improves the input and output of resource environment on the basis of economic input and output efficiency, and lays a foundation for comprehensively carrying out sustainability evaluation on a newly-built sewage treatment plant.

Optionally, establishing a sustainability evaluation index system of the sewage treatment plant based on the energy analysis table and the energy map of the target sewage treatment plant, including:

determining a basic energy value index based on the energy value item type, the main energy component outside the target sewage treatment plant and the main energy component inside the target sewage treatment plant;

determining a comprehensive energy index based on the basic energy index;

and establishing a sustainability evaluation index system of the sewage treatment plant based on the basic energy index and the comprehensive energy index.

Optionally, the base energy value indicator comprises:

renewable resource energy values, non-renewable resource energy values, commercial energy values, chemical agent energy values, artificial energy values, energy values, transport energy values, environmental pollution energy values, and total energy values for a target sewage treatment plant.

Optionally, the combined energy value indicator comprises:

the resource proportion can be updated, the resource proportion can not be updated, the purchase energy value proportion, the per-capita energy value, the energy value density, the purchase energy value dependency, the environmental pollution influence degree, the energy value investment rate, the environmental load rate, the energy value output rate and the sustainable index.

Optionally, the sustainability of the newly built sewage treatment plant is evaluated by using a sewage treatment plant sustainability evaluation index system, which comprises:

collecting data of a newly-built sewage treatment plant, determining an environmental load rate and a sustainable index by using a sustainability evaluation index system of the sewage treatment plant based on the data of the newly-built sewage treatment plant, and taking the environmental load rate and the sustainable index as sustainability evaluation results of the newly-built sewage treatment plant.

In a second aspect of the present application, a sustainability evaluation apparatus for a newly-built sewage treatment plant is also provided, comprising:

the classification module is used for collecting original data of a target sewage treatment plant, classifying the original data of the target sewage treatment plant and generating internal energy value data and external energy value data;

the building module is used for building an energy value analysis table based on the internal energy value data and the external energy value data;

the drawing module is used for drawing an energy value graph of the target sewage treatment plant based on the original data, the internal energy value data and the external energy value data of the target sewage treatment plant;

the system comprises an establishing module, a judging module and a judging module, wherein the establishing module is used for establishing a sustainability evaluation index system of a sewage treatment plant based on an energy analysis table and an energy map of a target sewage treatment plant;

and the evaluation module is used for evaluating the sustainability of the newly-built sewage treatment plant by utilizing a sustainability evaluation index system of the sewage treatment plant.

Optionally, a building block comprising:

the generating unit is used for acquiring the energy value project type, matching the original data of the target sewage treatment plant with the energy value project type and generating original data of the energy value project;

the acquisition unit is used for acquiring the energy value conversion rate, and determining solar energy value data by using the energy value conversion rate based on the original data of the energy value project;

the conversion unit is used for carrying out value conversion on the solar energy value data to generate energy value data;

and the construction unit is used for constructing an energy value analysis table based on the internal energy value data, the external energy value data, the energy value project type, the energy value project original data, the energy value conversion rate, the solar energy value data and the energy value data.

Optionally, a rendering module comprising:

the dividing unit is used for dividing the original data of the target sewage treatment plant and determining the range boundary of the target sewage treatment plant;

a first determination unit for determining an external main energy component of the target sewage treatment plant based on the external energy value data;

a second determination unit for determining a main energy component in the target sewage treatment plant based on the internal energy value data;

and the drawing unit is used for drawing an energy value diagram of the target sewage treatment plant based on the range boundary of the target sewage treatment plant, the main energy component outside the target sewage treatment plant and the main energy component inside the target sewage treatment plant.

Optionally, the establishing module includes:

a third determining unit, which is used for determining a basic energy value index based on the energy value item type, the main energy component outside the target sewage treatment plant and the main energy component inside the target sewage treatment plant;

a fourth determining unit for determining a comprehensive energy index based on the basic energy index;

and the establishing unit is used for establishing a sustainability evaluation index system of the sewage treatment plant based on the basic energy index and the comprehensive energy index.

Optionally, the base energy value indicator comprises:

Optionally, the combined energy value indicator comprises:

Optionally, the evaluation module is further configured to collect data of a newly-built sewage treatment plant, determine an environmental load rate and a sustainability index by using a sewage treatment plant sustainability evaluation index system based on the data of the newly-built sewage treatment plant, and take the environmental load rate and the sustainability index as sustainability evaluation results of the newly-built sewage treatment plant.

In a third aspect of the present application, a computer device is also presented, comprising a processor and a memory, wherein the memory is used for storing a computer program, the computer program comprising a program, and the processor is configured to invoke the computer program to perform the method of the first aspect.

In a fourth aspect of the present application, the present invention provides a computer-readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the method of the first aspect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a flow chart of a sustainability evaluation method of a newly built sewage treatment plant in example 1 of the present invention;

FIG. 2 is a flowchart of step S102 in embodiment 1 of the present invention;

FIG. 3 is a flowchart of step S103 in embodiment 1 of the present invention;

FIG. 4 is a schematic diagram of an energy map of a target sewage treatment plant in example 1 of the present invention;

FIG. 5 is a flowchart of step S104 in embodiment 1 of the present invention;

FIG. 6 is a schematic view of the main process flow of a sewage treatment plant in example 1 of the present invention;

FIG. 7 is a schematic block diagram of a sustainability evaluation device of a newly-built sewage treatment plant in embodiment 2 of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

The embodiment provides a sustainability evaluation method for a newly-built sewage treatment plant, as shown in fig. 1, including:

s101, collecting original data of a target sewage treatment plant, classifying the original data of the target sewage treatment plant, and generating internal energy value data and external energy value data.

Wherein, the external energy value data is a direct source or component elements discharged into the nature, and comprises renewable resources (solar radiation, wind energy, geothermal energy, rainwater chemical energy, rainwater potential energy and the like), non-renewable resources (mainly steel bars, cement, lime, bricks, stones, wood, water supply and the like required by the construction of sewage treatment plants), and environmental pollution (waste water, waste gas, waste residues and the like); the internal energy value data is various factors required by daily operation of a sewage treatment plant, and mainly comprises various external purchase resources, chemical agents, energy, manpower labor, service, transportation cost and other factors required by sewage treatment.

S102, constructing an energy value analysis table based on the internal energy value data and the external energy value data.

Specifically, an energy value analysis table for the sustainability evaluation of the sewage treatment plant is constructed, general component elements such as energy (j), quality (g) and value ($) are subjected to dimension conversion by an energy value method, the energy (j), the quality (g) and the value ($) are converted into energy value elements through an energy value conversion Rate (RET), the energy value elements are energy value elements such as energy value (sej/j), quality energy value (sej/g) and value energy value (sej/$), energy values such as resources, non-renewable resources, environmental pollution, purchased resources, chemical agents, energy, human labor, renewable services and transportation cost are calculated in a classified mode, and the energy values of the sewage treatment plant are analyzed quantitatively.

Wherein, the energy value analysis table generally comprises items such as serial numbers, components, elements, original data, energy value conversion rate, solar energy value, energy value and the like; since the value is typically in dollars, for ease of calculation, the RMB is converted to dollars and calculated, and the RMB dollar exchange rate is 6.87.

S103, drawing an energy value map of the target sewage treatment plant based on the original data of the target sewage treatment plant, the internal energy value data and the external energy value data.

Specifically, energy, substances and value components of different sources and different forms inside and outside the sewage treatment plant are converted into solar energy values, and an energy value system diagram is drawn by analyzing the action relationship of various energy values.

And S104, establishing a sustainability evaluation index system of the sewage treatment plant based on the energy value analysis table and the target sewage treatment plant energy value graph.

Specifically, the sewage treatment plant sustainability evaluation index system reflects the structure, function and efficiency of the sewage treatment plant system, is an index system reflecting the value of natural environment resources and the development of human socioeconomic, and the relationship between environment and economy, and between human and nature, and is also an index system for system comprehensive analysis and socioeconomic development decision-making reference. A series of energy value indexes obtained by the energy value analysis table can unify various ecological flows of the composite ecological system on an energy value scale, quantitatively analyze the structure and the function of the system, recognize the production value of the natural environment and the relationship between the production value and the human economy, and correctly process the relationship between human and natural resources and the relationship between the environment and the economy.

Further, extracting a second column of components (namely internal energy value data and external energy value data) in the energy value analysis table (namely removing the same type items), extracting a main energy component outside a target sewage treatment plant and a main energy component inside the target sewage treatment plant in the energy value diagram of the target sewage treatment plant to generate a basic energy value index, determining a comprehensive energy value index according to an evaluation index provided by an energy value method, wherein the sustainability evaluation index of the sewage treatment plant comprises renewable resource energy value E _renewable Non-updatable resource energy value E _nonrenewable Value of purchase energy E _purchase Chemical energy value E _chemical Artificial energy value E _human Energy value of energy E _energy Transport energy value E _{trasportation} Energy of environmental pollution E _pollutant Total energy value of system E _total Renewable resource proportion P _Rr Non-updatable resource ratio P _Nr Ratio of energy to purchase P _NrP Human energy per unit area P _Ep Energy density P _Ed The method comprises the following steps of purchasing energy value dependency PEDL, environment pollution influence degree PEIR, energy value investment rate EIR, environment load rate ELR, energy value yield rate EYR and sustainable index ESI.

And S105, evaluating the sustainability of the newly-built sewage treatment plant by utilizing the sustainability evaluation index system of the sewage treatment plant.

Specifically, data of a newly-built sewage treatment plant is collected, based on the data of the newly-built sewage treatment plant, the environmental load rate and the sustainable index are determined by using the sewage treatment plant sustainability evaluation index system, and the environmental load rate and the sustainable index are used as sustainability evaluation results of the newly-built sewage treatment plant.

Further, quantitative judgment and evaluation are carried out on the sustainability of the newly-built sewage treatment plant according to the index value and the evaluation standard of the Environmental Load Rate (ELR) sustainability index (ESI).

According to the sustainability evaluation method for the newly-built sewage treatment plant, the sustainability evaluation index system of the sewage treatment plant is established based on the energy analysis table and the energy map of the target sewage treatment plant, the defect that the technical and economic evaluation of the sewage treatment plant is not comprehensive in the prior art is overcome, the ecological environment elements are considered in the establishment of the energy analysis table and the energy map of the target sewage treatment plant, the evaluation of the sustainability of the ecological environment under a long time scale is established, and the sustainability evaluation of the newly-built sewage treatment plant is realized relatively comprehensively.

Preferably, as shown in fig. 2, the step S102 of constructing an energy value analysis table based on the internal energy value data and the external energy value data includes:

s1021, acquiring an energy value item type, and matching the original data of the target sewage treatment plant with the energy value item type to generate original data of an energy value item.

Specifically, as various energy value project types in the target sewage treatment plant are numerous, in order to determine and select the main energy value project, the basic principle of selecting the main energy value project is determined, and 5% of the total energy value of the target sewage treatment plant is used as a threshold condition, namely, the proportion of one project energy value in the total energy value of the target sewage treatment plant is not less than 5% of the main energy value project type, and is neglectable when the proportion is less than 5%; according to original data of a target sewage treatment plant, quantitatively counting flow numbers of various main energy value item types, namely the original data, and classifying and representing the flow numbers according to forms of energy (j), substances (g) and values ($) to generate original data of energy value items; wherein, the adopted solar energy value is 12 multiplied by 1024sej/y (solar joule/code).

S1022, obtaining an energy value conversion rate, and determining solar energy value data by using the energy value conversion rate based on the energy value project raw data.

Specifically, the energy conversion rate (R) corresponding to each main energy item _ET ) Converting original data of different measurement units such as energy (j), quality (g), value ($) and the like into solar energy value data of a uniform energy value unit, specifically: the product of the "original data" item of one energy item type and its corresponding "energy conversion rate" is the energy item classType "solar energy value".

Wherein the energy value conversion rate (R) _ET ) The energy value of each joule of certain energy (or each gram of certain substance, each unit of certain value) is equivalent to the energy value of how many joules (sej) of solar energy, and the energy value is mainly divided into 3 types, namely energy value conversion rate (sej/j), mass energy value (sej/g) and value energy value (sej/$); the energy conversion rate is an index for measuring the energy quality grade, the energy flow of an ecosystem or an ecological economic system flows and converts from a grade (such as electric energy) with more energy and lower quality (such as solar energy) and less vector and higher quality, the energy conversion rate is increased along with the increase of the energy grade, a large amount of energy with low energy quality, such as solar energy, wind energy and rain energy, is transferred and converted into a small amount of energy with high energy quality and high grade, a higher-grade person in the system has a larger energy conversion rate, needs larger energy with low energy quality to maintain, has higher energy quality and larger control force, plays a central function in the system, belongs to energy with high energy quality and high conversion rate in complicated life, human labor, high technology and the like, the higher energy conversion rate of a certain energy value indicates that the energy quality and the energy level of the energy are higher: the energy conversion ratio is a measure of energy quality and energy level.

And S1023, carrying out value conversion on the solar energy value data to generate energy value data.

Specifically, since the sewage treatment plant is an eco-economic system, in order to further quantitatively evaluate the sustainability of the sewage treatment plant economically, it is also possible to estimate the energy/currency ratio (R) according to the energy value _Ed ) Converting the energy value into an economic value for analysis, which specifically comprises the following steps: the "solar energy value" item of an energy value item divided by the "energy value/currency ratio" corresponding to the item is the "economic value" of the item, i.e. the value data.

Wherein the ratio of energy value/currency (R) _Ed ) The relation of representing the solar energy value and the economic value refers to the ratio of the energy value and the economic value of a country or a region, which is equal to the total solar energy value used by the economic system of the country or the region all year round divided by the national production total value (GNP) of the year, and the unit is sej/$.

S1024, constructing the energy value analysis table based on the internal energy value data, the external energy value data, the energy item type, the original energy of the energy item, the energy conversion rate, the solar energy value data and the energy value data.

Preferably, as shown in fig. 3, the step S103 of plotting an energy value map of the target sewage treatment plant based on the raw data of the target sewage treatment plant, the internal energy value data, and the external energy value data includes:

and S1031, dividing the original data of the target sewage treatment plant, and determining the range boundary of the target sewage treatment plant.

Specifically, the range boundary of a research target sewage treatment plant is determined, the internal and external components and the action process of the target sewage treatment plant are divided, and a square frame is drawn on a graph to be used as the boundary of an energy system.

And S1032, determining the main energy component outside the target sewage treatment plant based on the external energy value data.

Specifically, the main energy source of the sewage treatment plant generally comes from the outside of the system, the main energy component source of the target sewage treatment plant is drawn outside the boundary, according to the external energy value data, the main energy component outside the target sewage treatment plant comprises 3 parts of renewable resources, non-renewable resources, environmental pollution and the like, the renewable resources comprise solar radiation, wind energy, geothermal energy, rainwater chemical energy, rainwater potential energy and the like, the non-renewable resources comprise steel bars, cement, lime, bricks, stones, wood, water supply and the like required by the construction of the sewage treatment plant, and the environmental pollution mainly comprises wastewater, waste gas, waste residues and the like.

And S1033, determining the main energy component in the target sewage treatment plant based on the internal energy value data.

Specifically, the types of the main energy components in the target sewage treatment plant are listed, the main energy components in the system are represented by various energy symbol legends, the processes and the relationships of the main energy components in the system are listed, and according to the internal energy value data, the main energy components in the target sewage treatment plant comprise various external purchased resources, chemical agents, energy sources, labor costs, transportation costs and other factors required by sewage treatment.

S1034, drawing an energy value diagram of the target sewage treatment plant based on the range boundary of the target sewage treatment plant, the main energy component outside the target sewage treatment plant and the main energy component inside the target sewage treatment plant.

Specifically, as shown in fig. 4, the main energy components outside the target sewage treatment plant are drawn first, outside the box boundary, and arranged along the periphery; then drawing main energy components in the target sewage treatment plant, and expressing the main energy components in the target sewage treatment plant in the form of an energy symbol legend; the legends inside and outside the boundary are sorted according to the energy value conversion rate of the component represented by the legends, and are arranged from left to right in the sequence from low to high.

Preferably, as shown in fig. 5, the step S104 of establishing a sustainability evaluation index system of a sewage treatment plant based on the energy analysis table and the target sewage treatment plant energy map includes:

and S1041, determining a basic energy value index based on the energy value item type, the main energy component outside the target sewage treatment plant and the main energy component inside the target sewage treatment plant.

Specifically, the basic energy value indicator includes: renewable resource energy values, non-renewable resource energy values, purchase energy values, chemical agent energy values, artificial energy values, energy source energy values, transport energy values, environmental pollution energy values, and system total energy values; the calculation process is as follows:

(1) Renewable resource energy value E _renewable : renewable resource energy value E _renewable The energy value of renewable resources from the outside of a sewage treatment plant mainly comprises energy values of renewable resources such as solar radiation, wind energy, geothermal energy, rainwater chemical energy, rainwater potential energy and the like, and the energy value E of the renewable resources _renewable The calculation formula of (c) is as follows:

E _renewable ＝E _solar +E _wind +E _{geo_heat} +E _{rain_chem} +E _{rain_geo}

wherein E is _solar Is the energy of solar radiation, E _wind Is the energy value of wind energy E _{geo_heat} As a geothermal energy value, E _{rain_chem} Is the chemical energy value of rainwater, E _{rain_geo} For potential energy of rainwaterEnergy value.

(2) Value of non-updatable resource energy E _nonrenewable : value of non-updatable resource energy E _nonrenewable Refers to the energy value of non-renewable resources from the outside of the sewage treatment plant, mainly refers to the resources needed in the construction and operation process of the sewage treatment plant, including the energy values of non-renewable resources such as reinforcing steel bars, cement, lime, bricks, stones, wood, water supply and the like, and the energy value E of non-renewable resources _nonrenewable The calculation formula of (a) is as follows:

E _nonrenewable ＝E _steel +E _cement +E _limestone +E _brick +E _gravel +E _wood +E _water

wherein E is _steel Is the reinforcing bar energy value, E _cement Is cement energy value, E _limestone In lime energy value, E _brick Is brick energy value, E _gravel In stone energy value, E _wood Is the energy value of wood, E _water Is the energy value of water supply.

(3) Purchase energy value E _purchase : purchase energy value E _purchase The resource energy value needing to be purchased by using currency mainly comprises the energy values of aluminum, tile, asphalt and the like, and the purchase energy value E _purchase The calculation formula of (a) is as follows:

E _purchase ＝E _aluminum +E _tile +E _asphalt

wherein E is _aluminum Is the aluminum energy value, E _tile Is a wattage value, E _asphalt Is the bitumen energy value.

(4) Chemical energy value E _chemical : chemical energy value E _chemical The energy value of common chemical agent resources for sewage treatment in a sewage treatment plant mainly comprises energy values of polyaluminium chloride, liquid chlorine, polyacrylamide, potassium permanganate and the like, and a chemical agent energy value E _chemical The calculation formula of (a) is as follows:

E _chemical ＝E _{polyaluminium_chloride} +E _cl +E _{polyacrylamide} +E _{potassium_permanganate}

wherein E is _{polyaluminium_chloride} In the form of polyaluminum chloride value, E _cl Is the liquid chlorine energy value, E _{polyacrylamide} Is the polyacrylamide energy value, E _{potassium_permanganate} Is the potassium permanganate energy value.

(5) Artificial energy value E _human : artificial energy value E _human Refers to the energy value of the manpower labor and the service in the construction and operation process of the sewage treatment plant.

(6) Energy value of energy E _energy : energy value of energy E _energy The energy value of the electric energy in the process of construction and operation of the sewage treatment plant is referred to.

(7) Energy value for transportation E _{trasportation} : energy value for transportation E _{trasportation} The energy value required by the transportation of resources in a sewage treatment plant is mainly the energy value required by the transportation of sludge which is a sewage treatment product in the sewage treatment plant; the sludge of the sewage treatment plant is generally transported by a specially closed tank truck to a designated place for treatment.

(8) Energy value of environmental pollution E _pollutant : energy value of environmental pollution E _pollutant Mainly refers to the energy value of environmental pollutants generated in the construction and operation process of a sewage treatment plant, mainly comprises the energy values of three pollutants such as wastewater, waste gas, waste residues (three wastes) and the like, and the environmental pollution energy value E _pollutant The calculation formula of (a) is as follows:

E _pollutant ＝E _exhaustgas +E _wastewater +E _slagmuck

wherein E is _pollutant As an energy value of environmental pollution, E _exhaustgas As energy value of exhaust gas, E _wastewater As energy value of waste water, E _slagmuck Is the energy value of the waste residue.

Furthermore, the calculation steps of the energy values of three pollutants such as wastewater, waste gas, waste residue (three wastes) and the like are as follows:

1) Energy value of exhaust gas: according to the national standard GB 3095-2012, the waste gas of the newly-built sewage treatment plant mainly comprises total suspended particulate matters (TSP), sulfur dioxide (SO 2) and nitrogen oxides (NOx); the exhaust emission will affect the human health and the sustainability of the ecosystem, mainly reflected in causing respiratory diseases and destroying the ecological balance; therefore, the influence of the exhaust emission on the human health and the influence on the service function of the ecological system are comprehensively considered, and meanwhile, the economic loss accounting and the ecological benefit accounting are carried out, and the calculation formula of the exhaust energy value is as follows:

E _exhaustgas ＝E _health +E _ecosystem

wherein, E _exhaustgas As energy value of exhaust gas, E _health Is the healthy energy value of the human population, E _ecosystem Is an ecological benefit value.

The process of economic loss accounting and ecological profit and loss accounting is as follows:

and (4) accounting of economic loss: generally, the medical science uses Disability Adjusted Life Years (DALY) to evaluate the influence on the health of people, develops the index of the health energy value of people on the basis of the disability adjusted life years, and establishes the relationship between the health energy value of people and the disability adjusted life years to evaluate the influence of exhaust gas emission on the health energy value of people, wherein the disability adjusted life years refer to all health life years lost from morbidity to mortality, and the disability adjusted life years of different exhaust gases respectively have TSP values of 5.46 multiplied by 10 ^-5 SO2 is 8.87X 10 ^-5 NOx is 3.75X 10 ^-4 。

Further, the calculation formula of the human health energy value is as follows:

wherein E is _health Is the human health energy value, i.e. the loss of the energy value of the exhaust emission on the human health, and has the unit of sej/a, i is the type of exhaust, including TSP, SO2, NOx, W _i DALY for exhaust emissions _i Adjusting the life year for the i-th exhaust gas damage with the unit of a/kg (year/kilogram), alpha is the annual average energy value based on the benchmark energy value of 12.0 multiplied by 10 ²⁴ Calculating sej/a (solar Joule/year), and taking 1.68 multiplied by 10 ¹⁶ sej/(a. Person) (solar joule/(year. Person)).

B. Ecological profit and loss accounting: the ecological profit and loss accounting of the waste gas represents the influence of the waste gas on the ecological environment, three atmospheric pollutants, namely TSP, SO2 and NOx are mainly considered for accounting, and the specific accounting flow comprises two steps: the method is characterized in that firstly, the waste gas amount is calculated, secondly, the ecological damage and benefit value of the waste gas is quantitatively calculated, and the calculated waste gas amount can be expressed as:

wherein M is _i To represent the annual exhaust gas emissions (kg/a), i is the type of exhaust gas comprising TSP, SO2, NOx, c is the air density (1.23 kg/m) ³ 1.23 kg/cubic meter), U _i Is expressed as the annual emission of air pollutants in a sewage treatment plant in kg/a, s _i Is the standard of exhaust emission concentration, mg/m ³ The emission concentration standards of three waste gases of (milligram/cubic meter), TSP, SO2 and NOx adopt 0.08mg/m ³ 、0.02mg/m ³ 、0.05mg/m ³ 。

Accounting the ecological profit-and-loss values of the exhaust gas may be expressed as:

wherein E is _ecosystem The ecological benefit and damage value of the waste gas, sej/a, v is the average wind speed of the local year, T _w Is a unit wind energy value, and is 12.0 x 10 based on a reference energy value ²⁴ sej/a calculation, the unit wind energy value is 1.86 multiplied by 10 ³ sej/j (solar joules/joules).

2) Calculating the energy value of the wastewater: the calculation of the wastewater energy value of the sewage treatment plant comprises two steps, namely accounting for water consumption and accounting for the wastewater energy value; wherein, the accounting water consumption formula can be expressed as:

wherein Q is _i For fresh water consumption, kg/a, i is the reference index number for calculating water consumption, the calculation is carried out only according to COD, 1, d is the density of water 1.00 multiplied by 10 ³ kg/m ³ (kg/m), H _i Design annual sewage treatment capacity for sewage treatment plants, e _i For the sewage discharge concentration standard, the national standard concentration of 15mg/L (milligram/liter), M is adopted _water The annual discharge amount of the standard sewage of the sewage treatment plant is obtained.

The energy value formula for accounting wastewater can be expressed as:

wherein, E _wastewater Is annual wastewater energy value (sej/a), T _n Is the unit energy value of the Chinese earth surface runoff and is 12 multiplied by 10 based on the reference energy value ²⁴ Calculating sej/a, and taking 2.85 multiplied by 10 ⁷ sej/kg。

3) And (3) calculating the energy value of the waste residue: the calculation of the waste residue energy value mainly takes the sewage treatment product sludge of a sewage treatment plant into consideration, the treatment of the sludge is mainly focused on the influence of occupied land, and the calculation of the waste residue energy value can be expressed as follows:

E _slagmuck ＝Z _sludge ×P _L ×B _L

wherein, E _slagmuck For the sludge output of a sewage treatment plant, Z _sludge Is the total dry weight of annual sludge (t/a, ton/year), P _L Taking 2.85 multiplied by 10 as the land requirement of a unit sludge landfill ⁴ t/ha (ton/hectare), B _L Is a unit energy value of land based on a reference energy value of 12.0 × 10 ²⁴ Calculating sej/a, and taking 0.8 multiplied by 10 ¹⁵ sej/ha。

(9) Total energy E of target sewage treatment plant _total : total energy value E of target sewage treatment plant _total The sum of the basic energy values of the sewage treatment plant can be expressed as follows:

E _total ＝E _renewable +E _nonrenewable +E _purchase +E _chemical +E _human +E _energy +E _{trasportation} +E _pollutant

wherein E is _total Is the total energy value of a target sewage treatment plant, is the renewable resource energy value E _renewable ，E _nonrenewable To a non-updatable resource energy value, E _purchase To purchaseEnergy value, E _chemical Is a chemical energy value, E _human Is an artificial energy value, E _energy Energy value of energy, E _{trasportation} For transport energy values, E _pollutant Is the energy value of environmental pollution.

S1042, determining a comprehensive energy value index based on the basic energy value index.

Specifically, the comprehensive energy index includes: updatable resource proportion, non-updatable resource proportion, purchased energy value proportion, per-capita energy value, energy value density, purchased energy value dependency, environmental pollution influence degree, energy value investment rate, environmental load rate, energy value output rate and sustainable index; the calculation process of the comprehensive energy value index is as follows:

(1) Renewable resource proportion P _Rr : the ratio of the resource energy value to the total energy value of the target sewage treatment plant can be updated; p _Rr The current situation of the dependence of the target sewage treatment plant on the environmental resources is represented, and the contribution of the energy value of the environmental resources to the development economy is represented. P is _Rr The height of the water tank indicates the support strength of the environmental resources on the ecological condition of the target sewage treatment plant, the economic condition and the renewable resource proportion P _Rr The calculation formula of (c) is as follows:

(2) Non-updatable resource ratio P _Nr : the proportion of the energy value of the non-renewable resource to the total energy value of the target sewage treatment plant; p _Nr Characterizing the storage and utilization of internal resources of a target sewage treatment plant of a sewage treatment plant, generally in a highly developed sewage treatment plant, P _Nr The value is mostly lower, mainly because the total energy value of the target sewage treatment plant is far greater than that of the non-renewable resource, and the resource ratio P is not renewable _Nr The calculation formula of (a) is as follows:

(3) Ratio of purchase energy value P _NrP : the ratio of the purchased energy value to the total energy value of the target sewage treatment plant; p _NrP The higher, the lower the sustainability, the purchase energy ratio P _NrP The calculation formula of (a) is as follows:

(4) Human average energy value P _Ep : human energy per unit area P _Ep Representing the height of the per-capita benefit level of a target sewage treatment plant by the ratio of the total energy value to the total number of people, wherein the unit is sej/person; generally, the higher the per-capita value is, the higher the per-capita benefit of the sewage treatment plant is, and the per-capita value P _Ep The calculation formula of (c) is as follows:

wherein N is _person Is the total number of people in the sewage treatment plant.

(5) Energy density P _Ed : energy density P _Ed In order to research the energy value of unit area of a target sewage treatment plant, the intensive degree of energy value use of the sewage treatment plant is represented; the economic benefit of the sewage treatment plant is better, the higher the energy density is, and the energy density P is _Ed The calculation formula of (a) is as follows:

wherein S is _aera Is the total area of the sewage treatment plant.

(6) Purchase energy value dependency PEDL: the proportion of the purchase energy value to the non-updatable resource energy value; the dependency degree of the target sewage treatment plant on external energy resources is represented, the higher the PEDL is, the higher the external dependency degree is, and the calculation formula of the energy purchasing dependency degree PEDL is as follows:

(7) Environmental pollution impact PEIR: the proportion of the environmental pollution energy value to the total energy value of the target sewage treatment plant; the higher the PEIR, the worse the sustainability, and the environmental pollution impact degree PEIR, the following formula:

(8) Energy Investment Ratio (EIR): is the ratio of the economic investment energy value to the environmental resource energy value, the economic investment energy value comprises a purchase energy value E _purchase The environmental resource energy value comprises an updatable resource energy value E _renewable And a non-updatable resource energy value E _nonrenewable The EIR can be used for evaluating the economic development status and the core competitiveness of economic behaviors under a certain condition and can be used for presuming the actual bearing capacity of the environmental resource condition on the economic behaviors; the larger the EIR is, the higher the economic development degree of a target sewage treatment plant is, the higher the dependence on external economic investment is, and the lower the dependence on the investment of internal environmental resources is; conversely, the smaller the EIR, the lower the economic development degree of the target sewage treatment plant, the lower the dependence on external economic investment, the higher the dependence on internal environmental resource investment, and the calculation formula of the energy investment rate EIR is as follows:

(9) Environmental Load Ratio (ELR): the environmental load rate ELR is an index for measuring the influence of a target sewage treatment plant on the environment, and represents the level of technological development or the pressure of environmental load; calculating the environmental load rate by adopting the ratio of the sum of the non-updatable resource energy value, the purchase energy value and the pollutant energy value 3 to the renewable resource energy value; the ELR criteria were set to 3 levels, high (ELR ≧ 10), medium (3 < ELR < 10), low (ELR ≦ 3); if the environment of the target sewage treatment plant is under high pressure for a long time, the balance of the target sewage treatment plant is easily damaged, so that the index has an early warning effect on the operation of an ecological economic system, and the calculation formula of the environmental load rate ELR is as follows:

(10) Energy Yield Ratio (EYR, emery Yield Ratio): is the ratio of the output energy value of the target sewage treatment plant to the economic input energy value, and the output energy value of the target sewage treatment plant comprises renewable resource energy value E _renewable Non-updatable resource energy value E _nonrenewable And environmental pollution energy value E _pollutant Wait 3 parts, the economic investment energy value includes the purchase energy value E _purchase (ii) a The method is mainly used for representing the contribution condition of the output of a target sewage treatment plant to the development of economy, is similar to the 'output-to-input ratio' (input/output ratio) of economic analysis for reflecting the index of the production efficiency of the target sewage treatment plant, and measures the energy value of the target sewage treatment plant; the higher the EYR is, the more the target sewage treatment plant obtains the input of certain economic energy values, the higher the output energy value of the production is, the stronger the competitiveness of the sewage treatment plant is, and the calculation formula of the energy output rate EYR is as follows:

(11) Sustainability Index (ESI, energy susatinability Index): the sustainable index represents the sustainability and the development potential of a target sewage treatment plant of the sewage treatment plant, and the sustainable index ESI is calculated by adopting the ratio of the energy yield EYR to the environmental load rate ELR; designing 3 grade standards, namely strong sustainability (ESI is more than 5), medium sustainability (1 is more than or equal to ESI and less than or equal to 5) and weak sustainability (ESI is less than 1), wherein ESI calculation formulas of the sustainability indexes are as follows:

s1043, establishing a sustainability evaluation index system of the sewage treatment plant based on the basic energy index and the comprehensive energy index.

Further, index sensitivity analysis is carried out on the energy value evaluation result in the sustainability evaluation index system of the sewage treatment plant, and the specific steps are as follows: selecting 3 main energy value indexes in the basic energy value indexes according to the energy value, evaluating the change degree of the comprehensive energy value indexes according to the change of the 3 main energy value indexes, and evaluating the sensitivity of a calculation result according to a change degree result, wherein the change of the main energy value indexes is set as an index value increased by 10%, and if the change rate of the corresponding comprehensive energy value indexes is within +/-10%, the calculation result of the sustainable evaluation index system index of the sewage treatment plant is credible; if the value is not credible, reselecting 4 main energy indicators in the basic energy indicator, evaluating the change degree of the comprehensive energy indicator according to the change of the 4 main energy indicators, and evaluating the sensitivity of the calculation result according to the result of the change degree; further, if the calculation result is still not credible, further reselecting N +1 indexes, and repeating the step for calculation.

The following describes a sustainability evaluation method of a newly built sewage treatment plant by a specific example.

In this embodiment, a newly-built sewage treatment plant is located in a certain place, and the sustainability evaluation method of the newly-built sewage treatment plant comprises the following steps:

s1, collecting basic data and data: the area 6340.5 square kilometers is located between 120 degrees 52 'to 122 degrees 12' of east longitude and 30 degrees 40 'to 31 degrees 53' of north latitude, the total value of domestic production is 4746 hundred million dollars, the area belongs to subtropical monsoon climate, the average air temperature is 17.6 ℃ for many years, and the average wind speed is 3.25m/s for many years.

The newly-built sewage treatment plant aims to improve the sewage treatment capacity, the total investment is 5450 ten thousand dollars, the operation cost is 137 ten thousand dollars per year, the occupied area of a plant area is 31.8 hectare, and the design treatment capacity of the sewage treatment plant is 25 million tons, namely 2.5 multiplied by 10 ⁸ kg/a; annual discharge M of standard-reaching sewage of sewage treatment plant _water ＝4.51×10 ³ m ³ A; 500 workers in a sewage treatment plant, wherein the sewage treatment process is an Anaerobic-aerobic process (A-O), and mainly utilizes the oxidation of microorganisms to reduce the pressure of wastewaterDecomposing organic matters in the wastewater to achieve the effect of wastewater treatment, wherein A (Anaerobic) is an Anaerobic section used for removing nitrogen and phosphorus; o (Oxic) is an aerobic section for removing organic matter from water; as shown in fig. 6, the main process flow of the sewage treatment plant includes a mechanical grid filtration system, a grit chamber, a primary settling tank, a biochemical tank, a secondary settling tank, a tertiary settling tank, a disinfection tank, and the like.

The related expenses of the construction and operation process of the sewage treatment plant mainly comprise five parts, including building materials, auxiliary engineering cost, energy consumption, labor cost, government service fee and the like.

The main energy consumption of the sewage treatment plant is electric energy, and according to statistics of various energy consumption projects of the newly-built sewage treatment plant, the total cost of the electric energy consumption is about 4.22 multiplied by 10 ⁶ Dollars.

The sewage source is mainly urban domestic sewage and industrial wastewater, the water inlet and outlet are designed according to GB 18918-2002 standards, indexes such as Chemical Oxygen Demand (COD), biochemical Oxygen Demand (BOD), suspended matters (SS), total Phosphorus (TP), total Nitrogen (TN), ammonia nitrogen (NH 3-N) and the like are selected, and water samples of the water inlet and outlet are measured to obtain the characteristic indexes of the water inlet and outlet of the sewage treatment plant.

In addition, two byproducts are generated in the sewage treatment process, including sludge and waste gas, the dewatered sludge is transported to the outside of a factory for landfill treatment or incineration treatment, and the concentration of TSP, SO2, NOx and the like in the waste gas is 110mg/m ³ 、250mg/m ³ 、300mg/m ³ . The sludge treatment capacity is 55.8 tons per day (the transport distance of a truck is 10 kilometers), and the sludge incineration treatment cost is 18.76$/d.

S2, compiling an energy value analysis table:

s201, determining a reference energy value by adopting a solar energy value reference (12 multiplied by 10) ²⁴ sej/y) and based on the system main energy value items listed in S202, determining the energy value conversion rate of the listed items by looking up literature or other means.

S202 lists the system major energy items. The invention selects solar radiation, wind energy, geothermal energy, rainwater chemical energy, rainwater potential energy, reinforcing steel bars, cement, lime, bricks, stones, water supply, aluminum, tiles, asphalt, polyaluminium chloride, liquid chlorine, polyacrylamide, potassium permanganate, electric energy and manpower laborAnd (3) moving and service, resource transportation, waste water, waste gas, waste residue and other projects. Based on the listed items, the conversion rate of the original energy value of the item is obtained by looking up the literature, based on the base of the solar energy value (12 x 10) ²⁴ sej/y) calculates the corrected energy value conversion rate for the listed items.

S203 statistically equivalent item raw data. And (3) collecting basic data and data according to S1, and quantitatively counting the flow number of various main energy value items, namely raw data, which are classified and expressed according to the forms of energy (j), substance (g) and value ($).

1. Renewable resource energy value:

(1) Energy value of solar radiation: area of sewage treatment plant =3.18 × 10 ⁵ m ² ；

Solar radiation =5.43 × 10 ⁹ j/m ² Y; albedo =0.30;

annual solar radiation energy = (solar radiation) × (1-albedo) × (area)

＝(5.43×10 ⁹ j/m ² /y)×(1-0.30)×(3.18×10 ⁵ m ² )

＝1.32×10 ⁸ j/y。

(2) Wind energy value: area of sewage treatment plant =3.18 × 10 ⁵ m ² (ii) a Air density =1.29kg/m ³ (ii) a The wind speed is an average wind speed value for many years, the wind speed is a ground wind speed value, and the wind speed is =3.25m/s; the wind speed of the ground wind is 3 times of the wind speed of the ground wind in general, and the wind speed = (3.25) ³ m/s; coefficient of resistance =1.00 × 10 ^-3 (ii) a 1 year =3.15 × 10 ⁷ s；

Annual wind energy = (area) × (air density) × (drag coefficient) × (wind speed) ³

＝(3.18×10 ⁵ m ² )×(1.29kg/m ³ )×(1.00×10 ^-3 )×(3.25m/s) ³ ×(3.15×10 ⁷ s/y)

＝4.43×10 ¹¹ j/y。

(3) Geothermal energy: area of sewage treatment plant =3.18 × 10 ⁵ m ² (ii) a Mean annual calorie =3.50 × 10 ^-2 j/m ² /s；

Annual geothermal energy = (area) × (heat)

＝(3.18×10 ⁵ m ² )×(3.50×10 ^-2 j/m ² /s)×(3.15×10 ⁷ s/y)

＝3.51×10 ¹¹ j/y。

(4) Chemical energy of rainwater: area of sewage treatment plant =3.18 × 10 ⁵ m ² (ii) a Average rainfall over years =0.68m/y; density of water =1000kg/m ³ (ii) a Evapotranspiration rate =60%; gibbs free energy of water =4.94 × 10 ³ j/kg；

Annual rainwater chemical energy = (area) × (rainfall) × (evapotranspiration rate) × (water density) × (gibbs free energy of water)

＝(3.18×10 ⁵ m ² )×(0.68m/y)×(60％)×(1000kg/m ³ )×(4.94×10 ³ j/kg)

＝6.41×10 ¹¹ j/y。

(5) Rainwater potential energy: area of sewage treatment plant =3.18 × 10 ⁵ m ² (ii) a Average rainfall over years =0.68m/y; the average altitude of the area where the sewage treatment plant is located =316m; density of water =1000kg/m ³ (ii) a Runoff coefficient =0.4;

annual rainwater potential energy = (area) × (rainfall) × (runoff coefficient) × (density of water) × (average altitude) × (gravity)

＝(3.18×10 ⁵ m ² )×(0.71m/y)×(40％)×(1000kg/m ³ )×(316m)×(9.8kg/m ² )

＝2.80×10 ¹¹ j/y。

2. Energy sources: the main energy consumption of the sewage treatment plant is electric energy, and the average value of the construction energy consumption of the Chinese sewage treatment plant is =1kwh/REM multiplied by 0.687=0.687kwh/$;

power consumption of newly-built sewage treatment plant = (4.22 x 10) ⁶ $/0.687kwh/$)×3.6×10 ⁶ j＝2.21×10 ¹³ j；

The electricity consumption of the sewage treatment plant in the operation year is =16000kwh multiplied by 24h multiplied by 365d multiplied by 3.6 multiplied by 10 ⁶ j＝1.40×10 ¹⁴ j；

The total electric energy consumption of the sewage treatment plant =2.21 × 10 ¹³ +1.40×10 ¹⁴ ＝1.62×10 ¹⁴ j。

3. Human labor and service:

(1) Auxiliary engineering cost:

auxiliary engineering cost = scaffold + concrete support + equipment installation cost + night construction cost + bad weather construction cost =7329560$ +16784840$ +2306530$ +999011$ +482690$ =2.79 × 10 ⁷ $。

(2) Labor cost: the labor cost = construction cost + installation cost + decoration cost + municipal engineering cost =917390$ +213873$ +628545$ +136947$ =1.89 × 10 ⁶ $。

(3) Government service fee:

government service charge = environmental protection charge + civil construction charge + temporary facility charge + safety production charge + pollution discharge charge + danger operation accident damage insurance charge =54547.2$ +184536.7$ +37435.68$ +86615.89$ +43999.70$ =4.18 × 10 ⁵ $。

(4) Total human labor and service = auxiliary engineering cost + labor cost + government service fee = (2.79 × 10) ⁷ $)+(1.89×10 ⁶ $)+(4.18×10 ⁵ $)＝3.02×10 ⁷ $。

4. Transportation cost: the sludge treatment capacity is =55.8t/d; truck haul distance =10km; the total amount of sludge treatment and transportation per year =55.8t/d × 10km × 365d =2.04 × 10 ⁵ t·km。

S204 energy value conversion: energy conversion rate (R) corresponding to each main energy item _ET ) The method converts the raw data of different measurement units such as energy (j), quality (g), value ($) and the like into solar energy value data of a uniform energy value unit, and according to the primary energy value item energy value conversion rate and the primary energy value item data, the energy values of different items are calculated according to factors, and then an energy value analysis table can be compiled, wherein the energy value analysis table includes:

1. renewable resource energy value:

(1) Solar radiation energy value: conversion rate of solar radiation energy (R) _ET )＝1.00sej/j；

Annual solar energy =1.32 × 10 ⁸ j/y×1y×1.00sej/j＝1.32×10 ⁸ sej。

(2) Wind energy value:conversion ratio (R) of wind energy value _ET )＝1.90×10 ³ sej/j；

Annual energy of wind =4.43 × 10 ¹¹ j/y×1y×1.90×10 ³ sej/j＝8.42×10 ¹⁴ sej。

(3) Geothermal energy: conversion rate of geothermal energy (R) _ET )＝3.44×10 ⁴ sej/j；

Geothermal energy value =3.51 × 10 per year ¹¹ j/y×1y×3.44×10 ⁴ sej/j＝1.27×10 ¹⁴ sej。

(4) Chemical energy of rainwater: chemical energy conversion rate (R) of rainwater _ET )＝2.35×10 ⁴ sej/j；

Annual rainwater chemical energy value =6.41 × 10 ¹¹ j/y×1y×2.35×10 ⁴ sej/j＝1.51×10 ¹⁶ sej。

(5) Rainwater potential energy: conversion rate (R) of potential energy value of rainwater _ET )＝2.79×10 ⁴ sej/j；

Potential energy value of rainwater every year =2.80 × 10 ¹¹ j/y×1y×2.79×10 ⁴ sej/j＝7.81×10 ¹⁵ sej。

2. Resource energy value not updatable:

(1) Reinforcing steel bars: energy conversion rate (R) _ET )＝3.49×10 ¹² sej/kg；

Energy value = (2.83 × 10) ⁷ kg)×(3.49×10 ¹² sej/kg)＝9.88×10 ¹⁹ sej。

(2) Cement: energy conversion rate (R) _ET )＝1.93×10 ¹² sej/kg；

Energy value = (5.44 × 10) ⁷ kg)×(1.93×10 ¹² sej/kg)＝1.05×10 ²⁰ sej。

(3) Lime: energy conversion rate (R) _ET )＝1.27×10 ¹² sej/kg；

Energy value = (1.31 × 10) ⁵ kg)×(1.27×10 ¹² sej/kg)＝1.66×10 ¹⁷ sej。

(4) Brick making: energy conversion rate (R) _ET )＝2.82×10 ¹² sej/kg；

Energy value = (1.97 × 10) ⁶ kg)×(2.82×10 ¹² sej/kg)＝5.56×10 ¹⁸ sej。

(5) Stone: energy conversion ratio (R) _ET )＝1.42×10 ¹² sej/kg；

Energy value = (2.03 × 10) ⁷ kg)×(1.42×10 ¹² sej/kg)＝2.28×10 ¹⁹ sej。

(6) Wood: energy conversion rate (R) _ET )＝2.67×10 ¹² sej/kg；

Energy value = (5.79 × 10) ⁵ kg)×(2.67×10 ¹² sej/kg)＝1.55×10 ¹⁸ sej。

(7) Water supply: energy conversion rate (R) _ET )＝9.03×10 ¹¹ sej/m ³ ；

Energy value = (1.45 × 10) ⁶ m ³ )×(9.03×10 ¹¹ sej/m ³ )＝1.31×10 ¹⁸ sej。

3. Purchase energy value:

(1) Aluminum: energy conversion ratio (R) _ET )＝1.61×10 ¹³ sej/kg；

Energy value = (1.14 × 10) ⁶ kg)×(1.61×10 ¹³ sej/kg)＝1.84×10 ¹⁹ sej。

(2) Tile: energy conversion rate (R) _ET )＝3.89×10 ¹² sej/kg；

Energy value = (7.36 × 10) ⁵ kg)×(3.89×10 ¹² sej/kg)＝2.86×10 ¹⁸ sej。

(3) Asphalt: energy conversion rate (R) _ET )＝3.49×10 ¹² sej/kg；

Energy value = (1.40 × 10) ⁵ kg)×(3.49×10 ¹² sej/kg)＝4.89×10 ¹⁷ sej。

4. Chemical agents:

(1) Polyaluminum chloride: energy conversion ratio (R) _ET )＝3.37×10 ⁶ sej/kg；

Energy value = (6.52 × 10) ⁹ kg)×(3.37×10 ⁶ sej/kg)＝2.20×10 ¹⁶ sej。

(2) Liquid chlorine: energy conversion rate (R) _ET )＝3.37×10 ⁶ sej/kg；

Energy value = (3.86 × 10) ⁷ kg)×(3.37×10 ⁶ sej/kg)＝1.30×10 ¹⁴ sej。

(3) Polyacrylamide: energy conversion rate (R) _ET )＝3.37×10 ⁶ sej/kg；

Energy value = (2.49 × 10) ⁷ kg)×(3.37×10 ⁶ sej/kg)＝8.39×10 ¹³ sej。

(4) Potassium permanganate: energy conversion rate (R) _ET )＝3.37×10 ⁶ sej/kg；

Energy value = (3.04 × 10) ⁷ kg)×(3.37×10 ⁶ sej/kg)＝1.02×10 ¹⁴ sej。

5. Energy sources: energy conversion rate (R) _ET )＝4.50×10 ⁵ sej/j；

Energy value = (1.62 × 10) ¹⁴ j)×(4.50×10 ⁵ sej/j)＝7.29×10 ¹⁹ sej。

6. Human labor and service: energy conversion rate (R) _ET )＝1.14×10 ¹⁰ sej/$；

Energy value = (3.02 × 10) ⁷ $)×(1.14×10 ¹⁰ sej/$)＝3.44×10 ¹⁷ sej。

7. Transportation cost: energy conversion rate (R) _ET )＝7.61×10 ¹¹ sej/(t·km)；

Annual sludge treatment transport energy value = (2.04 x 10) ⁵ t·km)×(7.61×10 ¹¹ sej/(t·km))＝1.55×10 ^17s sej。

8. Environmental pollution:

(1) Waste water: design sewage treatment capacity H of newly-built sewage treatment plant _i ＝2.5×10 ⁸ kg/a; annual discharge M of standard-reaching sewage of sewage treatment plant _water ＝4.51×10 ³ m ³ A; density of water d =1.00 × 10 ³ kg/m ³ (ii) a Wastewater discharge concentration standard e _i =15mg/L; the calculation formula of the annual water consumption is as follows:

energy value of waste water E _watsewater ＝Q _i ×T _n ＝(1.66×10 ¹⁰ m ³ )×(2.85×10 ⁷ sej/m ³ )＝4.75×10 ¹⁷ sej。

(2) Waste gas:

A. and (4) accounting the economic loss: including TSP, SO2, NOx; w _i The amount of exhaust gas emission; DALY _i Adjusting the life year for the i-th waste gas damage, wherein the unit is a/kg; alpha is the annual energy value and is 12.0 multiplied by 10 based on the benchmark energy value ²⁴ Calculating sej/a, and taking 1.68 multiplied by 10 ¹⁶ sej/(a·person)。

E _{health_TSP} ＝W _TSP ×DALY _TSP ×α＝(35×10 ^-9 ×(3.75×10 ^-4 ×(1.68×10 ¹⁶ ×365×(2.5×10 ⁵ )＝2.01×10 ¹³ sej；

E _{health_SO2} ＝W _SO2 ×DALY _SO2 ×α＝(50×10 ^-9 ×(5.46×10 ^-5 ×(1.68×10 ¹⁶ ×365×(2.5×10 ⁵ )＝4.18×10 ¹³ sej；

E _{health_NOx} ＝W _NOx ×DALY _NOx ×α＝(80×10 ^-9 ×(8.87×10 ^-4 ×(1.68×10 ¹⁶ ×365×(2.5×10 ⁵ )＝1.09×10 ¹⁴ sej。

B. Ecological profit and loss accounting: the ecological profit and loss accounting of the waste gas represents the influence of the waste gas on the ecological environment, three atmospheric pollutants including TSP, SO2 and NOx are mainly considered for accounting, and the specific accounting flow comprises two steps; firstly, accounting the amount of the waste gas, and secondly, quantitatively accounting the ecological damage and benefit values of the waste gas; wherein the air density c =1.23kg/m ³ (ii) a The emission concentration standard of three waste gases of TSP, SO2 and NOx adopts 0.08mg/m ³ 、0.02mg/m ³ 、0.05mg/m ³ The amounts of exhaust gas are:

based on the reference energy value of 12.0X 10 ²⁴ sej/a calculation, the unit wind energy value is 1.86 multiplied by 10 ³ sej/j; accounting for the ecological profit-and-loss value of the exhaust gas can be expressed as:

E _{eco_TSP} ＝0.5×M _TSP ×v ² ×T _w ＝0.5×(4.93×10 ⁷ )×3.252×(1.86×10 ³ )＝4.84×10 ¹² sej；

E _{eco_SO2} ＝0.5×M _SO2 ×v ² ×T _w ＝0.5×(2.81×10 ⁸ )×3.252×(1.86×10 ³ )＝2.76×10 ¹² sej；

E _{eco_NOx} ＝0.5×M _NOx ×v ² ×T _w ＝0.5×(1.79×10 ⁸ )×3.252×(1.86×10 ³ )＝1.76×10 ¹² sej；

C. energy value of exhaust gas: the energy value of the waste gas is the sum of the energy values of economic loss accounting and ecological profit and loss accounting, and the calculation formula is as follows:

E _TSP ＝E _{health_TSP} +E _{eco_TSP} ＝2.01×10 ¹³ +4.84×10 ¹² ＝2.49×10 ¹³ sej；

E _SO2 ＝E _{health_SO2} +E _{eco_SO2} ＝4.18×10 ¹³ +2.76×10 ¹² ＝4.46×10 ¹³ sej；

E _NOx ＝E _{health_NOx} +E _{eco_NOx} ＝1.76×10 ¹⁴ +×10 ¹² ＝1.11×10 ¹⁴ sej。

(3) Waste residues:

the calculation of the waste residue energy value mainly takes the sewage treatment product sludge of a sewage treatment plant into consideration, the treatment of the sludge is mainly focused on the influence of occupied land, and the calculation of the waste residue energy value can be expressed as follows:

E _slagmuck ＝Z _sludge ×P _L ×B _L

further, the total annual sludge dry weight Z _sludge ＝55.8t/d×365d/a＝20367t/a; land requirement P of unit sludge landfill _L ＝2.85×10 ⁴ t/ha; value per unit of land B _L ＝0.8×10 ¹⁵ sej/ha; occupied ground energy value E _slagmuck1 The calculation formula of (2) is as follows:

E _slagmuck1 ＝Z _sludge ×P _L ×B _L ＝(20367×[1/(2.85×10 ⁴ )]×(8.0×10 ¹⁴ )＝5.72×10 ¹⁴ sej；

energy value of sludge incineration _slagmuck2 The calculation formula of (c) is:

E _slagmuck2 ＝(18.76)×55.8t×(1.14×10 ¹⁰ )＝1.19×10 ¹³ sej。

total energy of slag E _slagmuck The calculation formula of (c) is:

E _slagmuck ＝E _slagmuck1 +E _slagmuck2 ＝(5.72×10 ¹⁴ )+(1.19×10 ¹³ )＝5.84×10 ¹⁴ sej。

s3, drawing a system diagram of energy values:

the embodiment converts different sources, different forms of energy, substances and value components inside and outside the sewage treatment plant into solar energy values, and draws an energy value system diagram by analyzing the action relationship of various energy values.

S301, drawing a system boundary: determining the system range boundary of a research target sewage treatment plant, dividing the components inside and outside the system and the action process of the components, and drawing a square frame on a graph as the boundary of an energy system.

S302, determining main energy components outside the system: the main energy source of the sewage treatment plant generally comes from outside the system, the main energy component source of the system is drawn outside the boundary, according to the S101 external energy value, the main energy component outside the system comprises 3 parts of renewable resources, non-renewable resources, environmental pollution and the like, the renewable resources comprise solar radiation, wind energy, geothermal energy, rainwater chemical energy, rainwater potential energy and the like, the non-renewable resources comprise reinforcing steel bars, cement, lime, bricks, stones, wood, water supply and the like required by the construction of the sewage treatment plant, and the environmental pollution mainly comprises waste water, waste gas, waste residues and the like.

S303 determines the main energy components within the system: listing the types of the main energy components in the system, representing the main energy components in the system by various energy symbol legends, and listing the processes and relationships of the main energy components in the system. According to the S102 internal energy value, the main energy components in the system comprise various external purchase resources, chemical agents, energy sources, labor cost, transportation cost and other factors required by sewage treatment.

S304, drawing a system diagram overall graph: firstly, drawing main energy components outside a system, outside a square frame boundary, and arranging along the periphery; the main energy components within the system are then plotted, represented in the form of an energy symbol legend. The legends inside and outside the boundary are sorted according to the energy value conversion rate of the component represented by the legends, and are arranged from left to right in the sequence from low to high.

And S4, establishing an evaluation index system.

S5, quantitatively evaluating the sustainability of the system: s501, calculating evaluation indexes, compiling the types of the energy value analysis table according to S2 for data arrangement according to the basic data and the data collected in S1, and calculating all index values of an evaluation index system respectively based on an S4 evaluation index system.

S502 index sensitivity analysis: and carrying out sensitivity analysis on the energy evaluation result. According to the value of energy, 3 main value indicators of energy are selected, and the embodiment selects the value of non-updatable resource energy E according to the value proportion of energy _nonrenewable Value of purchase E _purchase Energy value of energy E _energy Evaluating the change degree of other energy value indexes according to the change of the 3 main energy value indexes, and evaluating the sensitivity of the calculation result according to the result of the change degree; in this embodiment, by adjusting 3 main energy indicators, the change value of the other comprehensive energy indicators is observed by increasing the value by 10% on the basis of the original energy value; wherein the main energy values indicate the changes in sensitivity as shown in Table 1 below.

Table 1:

serial number	Item	Code	Original value (sej)	Adjustment value (sej)	The proportion of the added value to the total energy value (%)
						1	Non-updatable resource energy value	E _nonrenewable	2.14×10 ²⁰	2.35×10 ²⁰	6.903
2	Value of purchase	E _purchase	2.17×10 ¹⁹	2.39×10 ¹⁹	0.700
						3	Energy value of energy	E _energy	7.29×10 ¹⁹	8.02×10 ¹⁹	2.352

The index change rate of the comprehensive energy value is within +/-10%, so that the calculation result is acceptable.

S503, evaluating sustainability: and making quantitative basic judgment and evaluation according to the Environmental Load Rate (ELR) sustainable index (ESI) index value and the evaluation standard.

(1) The Environmental Load Rate (ELR) is 9881.841, which is far greater than the standard high of the environmental load rate (ELR is more than or equal to 10), which indicates that the environmental load rate of the system is "high".

(2) The sustainability index (ESI) is 0.001101, much less than Standard 1 for weak sustainability (ESI < 1), indicating that system sustainability is "weak sustainability".

Example 2

The embodiment provides a sustainability evaluation device for a newly-built sewage treatment plant, as shown in fig. 7, comprising:

and the classification module 71 is used for acquiring the original data of the target sewage treatment plant, classifying the original data of the target sewage treatment plant and generating internal energy value data and external energy value data.

Wherein, the external energy value data is a direct source or component elements discharged into the nature, and comprises renewable resources (solar radiation, wind energy, geothermal energy, rainwater chemical energy, rainwater potential energy and the like), non-renewable resources (mainly reinforcing steel bars, cement, lime, bricks, stones, wood, water supply and the like required by the construction of sewage treatment plants), and environmental pollution (waste water, waste gas, waste residues and the like); the internal energy value data is various factors required by daily operation of a sewage treatment plant, and mainly comprises various external purchased resources, chemical agents, energy, manpower labor, service, transportation cost and other factors required by sewage treatment.

A construction module 72 for constructing an energy value analysis table based on the internal energy value data and the external energy value data.

Specifically, an energy value analysis table for sustainability evaluation of the sewage treatment plant is constructed, general component elements such as energy (j), mass (g) and value ($) are subjected to dimension conversion by using an energy value method, the energy (j), the mass (g) and the value ($) are converted into energy value elements through an energy value conversion Rate (RET), namely energy values (sej/j), mass energy values (sej/g) and value energy values (sej/$), energy values such as resources which cannot be updated, environmental pollution, resources purchased, chemical agents, energy, manpower labor, service which can be updated, transportation cost and the like are calculated in a classified mode, and the energy values of the sewage treatment plant are analyzed quantitatively.

The energy value analysis table generally comprises items such as sequence numbers, components, elements, original data, energy value conversion rate, solar energy values, energy value values and the like; since the value of value is typically in dollars, for ease of calculation, the renminbi is converted to dollars and the renminbi dollar exchange rate is calculated as 6.87.

And a drawing module 73, configured to draw an energy value map of the target sewage treatment plant based on the raw data of the target sewage treatment plant, the internal energy value data, and the external energy value data.

And the establishing module 74 is used for establishing a sustainability evaluation index system of the sewage treatment plant based on the energy value analysis table and the target sewage treatment plant energy value graph.

Further, extracting a second column of components (namely internal energy value data and external energy value data) in the energy value analysis table (namely removing the same type items), extracting a main energy component outside a target sewage treatment plant and a main energy component inside the target sewage treatment plant in the energy value diagram of the target sewage treatment plant to generate a basic energy value index, determining a comprehensive energy value index according to an evaluation index provided by an energy value method, wherein the sustainability evaluation index of the sewage treatment plant comprises renewable resource energy value E _renewable Non-updatable resource energy value E _nonrenewable Value of purchase E _purchase Chemical energy value E _chemical Artificial energy value E _human Energy value of energy E _energy Transport energy value E _{trasportation} Energy value of environmental pollution E _pollutant Total energy value of system E _total Renewable resource proportion P _Rr Non-updatable resource ratio P _Nr Ratio of purchase energy value P _NrP People, peopleMean energy value P _Ep Energy density P _Ed The method comprises the following steps of purchasing energy value dependency PEDL, environment pollution influence degree PEIR, energy value investment rate EIR, environment load rate ELR, energy value yield rate EYR and sustainable index ESI.

And the evaluation module 75 is used for evaluating the sustainability of the newly-built sewage treatment plant by utilizing the sustainability evaluation index system of the sewage treatment plant.

Above-mentioned newly-built sewage treatment plant sustainability evaluation device, establish sewage treatment plant sustainability evaluation index system based on energy analysis table and target sewage treatment plant energy map, overcome among the prior art to sewage treatment plant technical economy aassessment not comprehensive enough, ecological environment key element has been considered with the establishment of target sewage treatment plant energy map to energy analysis table, the evaluation of ecological environment sustainability under the long-time scale has been established, realized comparatively comprehensively to newly-built sewage treatment plant's sustainability evaluation.

Preferably, the building block 72 includes:

the generating unit 721 is configured to obtain an energy item type, match the raw data of the target sewage treatment plant with the energy item type, and generate raw data of the energy item.

The obtaining unit 722 is configured to obtain an energy value conversion rate, and determine solar energy value data by using the energy value conversion rate based on the original data of the energy value item.

Specifically, the energy conversion rate (R) corresponding to each main energy item _ET ) Converting original data of different measurement units such as energy (j), quality (g), value ($) and the like into solar energy value data of a uniform energy value unit, specifically: the product of the "raw data" item of one energy item type and its corresponding "energy conversion rate" is the "solar energy value" of that energy item type.

And the conversion unit 723 is used for performing value conversion on the solar energy value data to generate energy value data.

Specifically, since the sewage treatment plant is an eco-economic system, in order to further quantitatively evaluate the sustainability of the sewage treatment plant economically, it is also possible to estimate the energy/currency ratio (R) according to the energy value _Ed ) Converting the energy value into an economic value for analysis, specifically comprising the following steps: the "solar energy value" item of an energy value item divided by the "energy value/currency ratio" corresponding to the item is the "economic value", i.e. value data, of the item.

A constructing unit 724 for constructing the energy value analysis table based on the internal energy value data, the external energy value data, the type of energy value item, the original data of energy value item, the energy value conversion rate, the solar energy value data and the energy value data.

Preferably, the drawing module 73 includes:

and a dividing unit 731, configured to divide the raw data of the target sewage treatment plant, and determine a range boundary of the target sewage treatment plant.

A first determination unit 732 for determining the external main energy component of the target sewage treatment plant based on the above external energy value data.

And a second determination unit 733 for determining a major energy component within the target sewage treatment plant based on the internal energy value data.

A drawing unit 734, configured to draw an energy map of the target sewage treatment plant based on the range boundary of the target sewage treatment plant, the external main energy component of the target sewage treatment plant, and the internal main energy component of the target sewage treatment plant.

Specifically, the main energy components outside the target sewage treatment plant are drawn firstly, are drawn outside the boundary of the square frame and are arranged along the periphery; then drawing main energy components in the target sewage treatment plant, and representing the main energy components in the form of an energy symbol legend; the legends inside and outside the boundary are sorted according to the energy value conversion rate of the represented component, and are arranged from left to right in sequence from low to high.

Preferably, the establishing module 74 includes:

a third determining unit 741 for determining a basic energy value index based on the energy value item type, the major energy component outside the target sewage treatment plant, and the major energy component inside the target sewage treatment plant.

Specifically, the basic energy value indicator includes: renewable resource energy values, non-renewable resource energy values, purchase energy values, chemical agent energy values, human energy values, energy source energy values, transport energy values, environmental pollution energy values, and system total energy values; the calculation process is as follows:

(1) Renewable resource energy value E _renewable : renewable resource energy value E _renewable Is the energy value of renewable resources from the outside of a sewage treatment plant, mainly comprises the energy values of renewable resources such as solar radiation, wind energy, geothermal energy, rainwater chemical energy, rainwater potential energy and the like, and the energy value E of the renewable resources _renewable The calculation formula of (c) is as follows:

E _renewable ＝E _solar +E _wind +E _{geo_heat} +E _{rain_chem} +E _{rain_geo}

wherein E is _solar Is the energy of solar radiation, E _wind Is the energy value of wind energy E _{geo_heat} As a geothermal energy value, E _{rain_chem} Is the chemical energy value of rainwater, E _{rain_geo} Is the potential energy value of the rainwater.

wherein E is _steel Is the energy value of the steel bar, E _cement Is cement energy value, E _limestone In lime energy value, E _brick Is brick energy value, E _gravel In stone energy value, E _wood Is the energy value of wood, E _water Is the energy value of the water supply.

(3) Value of purchase energy E _purchase : purchase energy value E _purchase The resource energy value needing to be purchased by using currency mainly comprises energy values of aluminum, tile, asphalt and the like, and the purchasing energy value E _purchase The calculation formula of (a) is as follows:

E _purchase ＝E _aluminum +E _tile +E _asphalt

wherein E is _aluminum Is the energy value of aluminum, E _tile Is the value of Watt, E _asphalt Is the bitumen energy value.

(4) Chemical energy value E _chemical : chemical energy value E _chemical The energy value refers to the energy value of common chemical agent resources for sewage treatment in a sewage treatment plant, mainly comprises the energy values of polyaluminum chloride, liquid chlorine, polyacrylamide, potassium permanganate and the like, and the energy value E of the chemical agent _chemical The calculation formula of (c) is as follows:

(7) Energy value for transportation E _{trasportation} : energy value for transportation E _{trasportation} Refers to the capital of the sewage treatment plantThe energy value required by source transportation mainly refers to the energy value of sludge transportation of a sewage treatment product in a sewage treatment plant; the sludge from sewage treatment plants is generally transported by specially closed tank trucks to a designated location for treatment.

(8) Energy value of environmental pollution E _pollutant : energy value of environmental pollution E _pollutant Mainly refers to the energy value of the environmental pollutants generated in the process of construction and operation of sewage treatment plants, mainly comprises the energy values of three pollutants such as wastewater, waste gas, waste residue (three wastes) and the like, and the energy value E of the environmental pollution _pollutant The calculation formula of (a) is as follows:

E _pollutant ＝E _exhaustgas +E _wastewater +E _slagmuck

wherein E is _pollutant As a source of environmental pollution energy, E _exhaustgas As energy value of exhaust gas, E _wastewater As energy value of waste water, E _slagmuck Is the energy value of the waste residue.

1) Exhaust gas energy value: according to the national standard GB 3095-2012, the waste gas of a newly-built sewage treatment plant mainly comprises total suspended particulate matters (TSP), sulfur dioxide (SO 2) and nitrogen oxides (NOx); the exhaust emission will affect the human health and the sustainability of the ecosystem, mainly reflected in causing respiratory diseases and destroying the ecological balance; therefore, the influence of the exhaust emission on the human health and the influence on the service function of the ecological system are comprehensively considered, and meanwhile, the economic loss accounting and the ecological benefit accounting are carried out, and the calculation formula of the exhaust energy value is as follows:

E _exhaustgas ＝E _health +E _ecosystem

wherein E is _exhaustgas As energy value of exhaust gas, E _health Is the healthy energy of the human population, E _ecosystem Is ecological profit and loss value.

and (4) accounting of economic loss: people are generally evaluated medically by Disability Adjusted Life Years (DALY)The influence of group health is that the index of the group health energy value is developed on the basis of the disability adjusting life years, the relationship between the group health energy value and the disability adjusting life years is established to evaluate the influence of exhaust gas emission on the group health energy value, wherein the disability adjusting life years refer to all health life years lost from morbidity to mortality, and the disability adjusting life years of different exhaust gases respectively have TSP (total suspended particulate matter) of 5.46 multiplied by 10 ^-5 SO2 is 8.87X 10 ^-5 NOx is 3.75X 10 ^-4 。

Further, the calculation formula of the health energy value of the crowd is as follows:

wherein E is _health Is the human health energy value, i.e. the loss of the energy value of the exhaust emission on the human health, and has the unit of sej/a, i is the type of exhaust, including TSP, SO2, NOx, W _i DALY is the amount of exhaust emissions _i Adjusting the life year for the i-th waste gas damage, wherein the unit is a/kg (year/kilogram), alpha is the annual per-capita energy value, and the value is 12.0 multiplied by 10 based on the benchmark energy value ²⁴ Calculating sej/a (solar Joule/year), and taking 1.68 multiplied by 10 ¹⁶ sej/(a person) (solar joule/(year person)).

B. Ecological profit and loss accounting: the ecological profit and loss accounting of the waste gas represents the influence of the waste gas on the ecological environment, three atmospheric pollutants including TSP, SO2 and NOx are mainly considered for accounting, and the specific accounting flow comprises two steps: the method comprises the following steps of firstly, accounting the waste gas quantity, secondly, quantizing and accounting the ecological profit-and-loss value of the waste gas, wherein the accounted waste gas quantity can be expressed as:

wherein M is _i To represent the annual exhaust gas emissions (kg/a), i is the type of exhaust gas comprising TSP, SO2, NOx, c is the air density (1.23 kg/m) ³ 1.23 kg/cubic meter), U _i Is expressed as the annual emission of air pollutants in a sewage treatment plant in kg/a, s _i In order to be the standard of the exhaust gas emission concentration,mg/m ³ the emission concentration standard of three waste gases of (milligram/cubic meter), TSP, SO2 and NOx adopts 0.08mg/m ³ 、0.02mg/m ³ 、0.05mg/m ³ 。

wherein, E _ecosystem The value of ecological damage and benefit of the waste gas is sej/a, v is the average wind speed in the local year, T _w Is a unit wind energy value, and is 12.0 x 10 based on a reference energy value ²⁴ sej/a calculation, the unit wind energy value is 1.86 multiplied by 10 ³ sej/j (solar joules/joules).

2) Calculating the energy value of the waste water: the calculation of the wastewater energy value of the sewage treatment plant comprises two steps, namely accounting for water consumption and accounting for the wastewater energy value; wherein the accounting water consumption formula can be expressed as:

wherein Q is _i For fresh water consumption, kg/a, i is the index number for calculating water consumption, and the calculation is carried out only according to COD, and 1, d is the density of water 1.00 multiplied by 10 ³ kg/m ³ (kg/m), H _i Design annual sewage treatment capacity for sewage treatment plants, e _i For the sewage discharge concentration standard, the national standard concentration of 15mg/L (milligram/liter), M is adopted _water The annual discharge amount of the standard sewage of the sewage treatment plant is reduced.

The accounting waste water energy value formula can be expressed as:

wherein E is _wastewater Is annual wastewater energy value (sej/a), T _n Is the unit energy value of China earth surface runoff and is 12 multiplied by 10 based on the reference energy value ²⁴ Calculating sej/a, and taking 2.85 multiplied by 10 ⁷ sej/kg。

3) Calculating the energy value of the waste residue: the calculation of the waste residue energy value mainly takes the sewage treatment product sludge of a sewage treatment plant into consideration, the treatment of the sludge is mainly focused on the influence of occupied land, and the calculation of the waste residue energy value can be expressed as follows:

E _slagmuck ＝Z _sludge ×P _L ×B _L

wherein E is _slagmuck For the sludge yield of a sewage treatment plant, Z _sludge Is the total dry weight of annual sludge (t/a, ton/year), P _L Taking 2.85 multiplied by 10 as the land requirement of a unit sludge landfill ⁴ t/ha (ton/hectare), B _L Is a land unit energy value of 12.0 × 10 based on the reference energy value ²⁴ Calculating sej/a, and taking 0.8 multiplied by 10 ¹⁵ sej/ha。

wherein E is _total Is the total energy value of a target sewage treatment plant, and is the renewable resource energy value E _renewable ，E _nonrenewable To a non-updatable resource energy value, E _purchase To purchase an energy value, E _chemical In the form of chemical energy value, E _human Is an artificial energy value, E _energy Energy value of energy, E _{trasportation} For transportation energy value, E _pollutant Is an environmental pollution energy value.

A fourth determining unit 742 for determining a combined energy value index based on the basic energy value index.

Specifically, the comprehensive energy value index includes: updatable resource proportion, non-updatable resource proportion, purchased energy value proportion, per-capita energy value, energy value density, purchased energy value dependency, environmental pollution influence degree, energy value investment rate, environmental load rate, energy value output rate and sustainable index; the calculation process of the comprehensive energy value index is as follows:

(1) Renewable resource proportion P _Rr : the ratio of the resource energy value to the total energy value of the target sewage treatment plant can be updated; p is _Rr The current situation of the dependence of the target sewage treatment plant on the environmental resources is represented, and the contribution of the energy value of the environmental resources to the development economy is represented. P is _Rr The height of the water tank indicates the support strength of the environmental resources on the ecological condition of the target sewage treatment plant, the economic condition and the renewable resource proportion P _Rr The calculation formula of (a) is as follows:

(2) Non-updatable resource ratio P _Nr : the proportion of the energy value of the non-renewable resource to the total energy value of the target sewage treatment plant; p _Nr The method characterizes the storage and utilization conditions of internal resources of a target sewage treatment plant of the sewage treatment plant, and generally represents the P storage and utilization conditions of the internal resources of the target sewage treatment plant in a highly developed sewage treatment plant _Nr The value is mostly lower, mainly because the total energy value of the target sewage treatment plant is far greater than that of the non-renewable resource, and the resource ratio P is not renewable _Nr The calculation formula of (a) is as follows:

(4) Human average energy value P _Ep : human average energy value P _Ep Representing the height of the per-capita benefit level of a target sewage treatment plant by the ratio of the total energy value to the total number of people, wherein the unit is sej/person; generally, the higher the per-capita energy value is, the higher the per-capita benefit of the sewage treatment plant is, and the per-capita energy isValue P _Ep The calculation formula of (c) is as follows:

wherein N is _person Is the total number of sewage treatment plants.

(5) Energy density P _Ed : energy density P _Ed In order to research the energy value of unit area of a target sewage treatment plant, the intensive degree of energy value use of the sewage treatment plant is represented; the better the economic benefit of the general sewage treatment plant, the higher the energy density, the energy density P _Ed The calculation formula of (a) is as follows:

wherein S is _aera Is the total area of the sewage treatment plant.

(7) Environmental pollution impact PEIR: the proportion of the environmental pollution energy value to the total energy value of the target sewage treatment plant; the higher the PEIR, the poorer the sustainability, and the formula for calculating the impact of environmental pollution on PEIR is as follows:

(8) Energy Investment Ratio (EIR, empty Investment Ratio): refers to the ratio of the economic investment energy value to the environmental resource energy value, the economic investment energy value comprises a purchase energy value E _purchase The environmental resource energy value comprises an updatable resource energy valueE _renewable And a non-updatable resource energy value E _nonrenewable The EIR can be used for evaluating the economic development status and the core competitiveness of economic behaviors under a certain condition and can be used for presuming the actual bearing capacity of the environmental resource condition on the economic behaviors; the larger the EIR is, the higher the economic development degree of a target sewage treatment plant is, the higher the dependence on external economic investment is, and the lower the dependence on the investment of internal environmental resources is; conversely, the smaller the EIR, the lower the economic development degree of the target sewage treatment plant, the lower the dependence on external economic investment, the higher the dependence on internal environmental resource investment, and the calculation formula of the energy investment rate EIR is as follows:

(10) Energy Yield Ratio (EYR, energy Yield Ratio): is the ratio of the output energy value of the target sewage treatment plant to the economic input energy value, and the output energy value of the target sewage treatment plant comprises renewable resource energy value E _renewable Non-updatable resource energy value E _nonrenewable And energy value of environmental pollution E _pollutant And (3) waiting for the part(s),the economic investment energy value comprises a purchase energy value E _purchase (ii) a The method is mainly used for representing the contribution condition of the output of a target sewage treatment plant to the development of economy, is similar to the 'output-to-input ratio' (input/output ratio) of economic analysis for reflecting the index of the production efficiency of the target sewage treatment plant, and measures the energy value of the target sewage treatment plant; the higher the EYR is, the more the target sewage treatment plant obtains the input of certain economic energy values, the higher the output energy value of the production is, the stronger the competitiveness of the sewage treatment plant is, and the calculation formula of the energy output rate EYR is as follows:

and the establishing unit 743 is used for establishing the sustainability evaluation index system of the sewage treatment plant based on the basic energy index and the comprehensive energy index.

Further, index sensitivity analysis is carried out on the energy value evaluation result in the sustainability evaluation index system of the sewage treatment plant, and the specific steps are as follows: selecting 3 main energy indicators in the basic energy indicators according to the energy values, evaluating the change degree of the comprehensive energy indicators according to the change of the 3 main energy indicators, and evaluating the sensitivity of the calculation result according to the result of the change degree, wherein the change of the main energy indicators is set as the index value increased by 10%, and if the change rate of the corresponding comprehensive energy indicators is within +/-10%, the calculation result of the sustainability evaluation index system of the sewage treatment plant is credible; if the value is not credible, reselecting 4 main energy value indexes in the basic energy value indexes, evaluating the change degree of the comprehensive energy value indexes according to the change of the 4 main energy value indexes, and evaluating the sensitivity of the calculation result according to the result of the change degree; further, if the calculation result is still not credible, further reselecting the N +1 indexes, and repeating the step for calculation.

Example 3

The embodiment provides a computer device which comprises a memory and a processor, wherein the processor is used for reading instructions stored in the memory to execute the sustainability evaluation method of the newly-built sewage treatment plant in any method embodiment.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Example 4

The present embodiment provides a computer-readable storage medium storing computer-executable instructions that can perform a method for sustainability assessment in a newly-built sewage treatment plant in any of the above method embodiments. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A sustainability evaluation method for a newly built sewage treatment plant is characterized by comprising the following steps:

collecting original data of a target sewage treatment plant, classifying the original data of the target sewage treatment plant, and generating internal energy value data and external energy value data;

drawing an energy value map of the target sewage treatment plant based on the original data of the target sewage treatment plant, the internal energy value data and the external energy value data;

and evaluating the sustainability of the newly built sewage treatment plant by utilizing the sustainability evaluation index system of the sewage treatment plant.

2. The method for evaluating the sustainability of a newly built sewage treatment plant according to claim 1, wherein the step of constructing an energy value analysis table based on the internal energy value data and the external energy value data comprises the following steps:

acquiring an energy value project type, and matching the original data of the target sewage treatment plant with the energy value project type to generate original data of an energy value project;

and constructing the energy value analysis table based on the internal energy value data, the external energy value data, the energy value project type, the energy value project raw data, the energy value conversion rate, the solar energy value data and the energy value data.

3. The method for evaluating the sustainability of a newly built sewage treatment plant according to claim 2, wherein the step of plotting the energy value of the target sewage treatment plant based on the raw data of the target sewage treatment plant, the internal energy value data and the external energy value data comprises the following steps:

dividing the original data of the target sewage treatment plant, and determining the range boundary of the target sewage treatment plant;

determining an external main energy component of the target sewage treatment plant based on the external energy value data;

determining a primary energy component within a target sewage treatment plant based on the internal energy value data;

and drawing an energy value map of the target sewage treatment plant based on the range boundary of the target sewage treatment plant, the main energy component outside the target sewage treatment plant and the main energy component inside the target sewage treatment plant.

4. The method as claimed in claim 3, wherein the establishing of the sustainability index system of the newly built sewage treatment plant based on the energy analysis table and the energy map of the target sewage treatment plant comprises:

determining a base energy value indicator based on the energy value item type, the major energy component outside the target sewage treatment plant, and the major energy component inside the target sewage treatment plant;

determining a composite energy value indicator based on the base energy value indicator;

5. The sustainability evaluation method of a newly built sewage treatment plant according to claim 4, wherein the basic energy value index comprises:

renewable resource energy values, non-renewable resource energy values, purchase energy values, chemical agent energy values, labor energy values, energy source energy values, transportation energy values, environmental pollution energy values, and target sewage treatment plant total energy values.

6. The sustainability evaluation method of a newly built sewage treatment plant according to claim 4, wherein the comprehensive energy index comprises:

7. The method for evaluating the sustainability of a newly built sewage treatment plant according to claim 6, wherein the evaluation of the sustainability of the newly built sewage treatment plant by using the sustainability evaluation index system comprises the following steps:

collecting data of a newly-built sewage treatment plant, determining the environmental load rate and the sustainable index by using the sustainability evaluation index system of the sewage treatment plant based on the data of the newly-built sewage treatment plant, and taking the environmental load rate and the sustainable index as the sustainability evaluation result of the newly-built sewage treatment plant.

8. A newly-built sewage treatment plant sustainability evaluation device which is characterized by comprising:

a construction module for constructing an energy value analysis table based on the internal energy value data and the external energy value data;

the drawing module is used for drawing an energy value map of the target sewage treatment plant based on the original data of the target sewage treatment plant, the internal energy value data and the external energy value data;

the establishing module is used for establishing a sustainability evaluation index system of the sewage treatment plant based on the energy value analysis table and the energy value diagram of the target sewage treatment plant;

and the evaluation module is used for evaluating the sustainability of the newly-built sewage treatment plant by utilizing the sustainability evaluation index system of the sewage treatment plant.

9. A computer device comprising a processor and a memory, wherein the memory is configured to store a computer program and the processor is configured to invoke the computer program to perform the steps of the method of any of claims 1-7.

10. A computer-readable storage medium having stored thereon computer instructions, which, when executed by a processor, carry out the steps of the method according to any one of claims 1-7.